A quality control engineer needs to ensure that the caps on shampoo bottles are fastened correctly. If the caps are fastened too loosely, they may fall off during shipping. If they are fastened too tightly, they may be too difficult to remove. The target torque value for fastening the caps is 18. The engineer collects a random sample of 68 bottles and tests the amount of torque that is needed to remove the caps.
You can use this data to demonstrate Graphical Summary, Histogram, Dotplot, and other analyses that compare distributions.
|Torque||The torque that is needed to remove the cap|
|Machine||The machine that tightened the cap: 1 or 2|